decoder.js
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Created: Mon, Nov 18, 21:38

decoder.js
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	function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

	import { CompileError } from "@webassemblyjs/helper-api-error";
	import * as ieee754 from "@webassemblyjs/ieee754";
	import * as utf8 from "@webassemblyjs/utf8";
	import * as t from "@webassemblyjs/ast";
	import { decodeInt32, decodeUInt32, MAX_NUMBER_OF_BYTE_U32, decodeInt64, decodeUInt64, MAX_NUMBER_OF_BYTE_U64 } from "@webassemblyjs/leb128";
	import constants from "@webassemblyjs/helper-wasm-bytecode";

	function toHex(n) {
	return "0x" + Number(n).toString(16);
	}

	function byteArrayEq(l, r) {
	if (l.length !== r.length) {
	return false;
	}

	for (var i = 0; i < l.length; i++) {
	if (l[i] !== r[i]) {
	return false;
	}
	}

	return true;
	}

	export function decode(ab, opts) {
	var buf = new Uint8Array(ab);
	var getUniqueName = t.getUniqueNameGenerator();
	var offset = 0;

	function getPosition() {
	return {
	line: -1,
	column: offset
	};
	}

	function dump(b, msg) {
	if (opts.dump === false) return;
	var pad = "\t\t\t\t\t\t\t\t\t\t";
	var str = "";

	if (b.length < 5) {
	str = b.map(toHex).join(" ");
	} else {
	str = "...";
	}

	console.log(toHex(offset) + ":\t", str, pad, ";", msg);
	}

	function dumpSep(msg) {
	if (opts.dump === false) return;
	console.log(";", msg);
	}
	/**
	* TODO(sven): we can atually use a same structure
	* we are adding incrementally new features
	*/


	var state = {
	elementsInFuncSection: [],
	elementsInExportSection: [],
	elementsInCodeSection: [],

	/**
	* Decode memory from:
	* - Memory section
	*/
	memoriesInModule: [],

	/**
	* Decoded types from:
	* - Type section
	*/
	typesInModule: [],

	/**
	* Decoded functions from:
	* - Function section
	* - Import section
	*/
	functionsInModule: [],

	/**
	* Decoded tables from:
	* - Table section
	*/
	tablesInModule: [],

	/**
	* Decoded globals from:
	* - Global section
	*/
	globalsInModule: []
	};

	function isEOF() {
	return offset >= buf.length;
	}

	function eatBytes(n) {
	offset = offset + n;
	}

	function readBytesAtOffset(_offset, numberOfBytes) {
	var arr = [];

	for (var i = 0; i < numberOfBytes; i++) {
	arr.push(buf[_offset + i]);
	}

	return arr;
	}

	function readBytes(numberOfBytes) {
	return readBytesAtOffset(offset, numberOfBytes);
	}

	function readF64() {
	var bytes = readBytes(ieee754.NUMBER_OF_BYTE_F64);
	var value = ieee754.decodeF64(bytes);

	if (Math.sign(value) * value === Infinity) {
	return {
	value: Math.sign(value),
	inf: true,
	nextIndex: ieee754.NUMBER_OF_BYTE_F64
	};
	}

	if (isNaN(value)) {
	var sign = bytes[bytes.length - 1] >> 7 ? -1 : 1;
	var mantissa = 0;

	for (var i = 0; i < bytes.length - 2; ++i) {
	mantissa += bytes[i] * Math.pow(256, i);
	}

	mantissa += bytes[bytes.length - 2] % 16 * Math.pow(256, bytes.length - 2);
	return {
	value: sign * mantissa,
	nan: true,
	nextIndex: ieee754.NUMBER_OF_BYTE_F64
	};
	}

	return {
	value: value,
	nextIndex: ieee754.NUMBER_OF_BYTE_F64
	};
	}

	function readF32() {
	var bytes = readBytes(ieee754.NUMBER_OF_BYTE_F32);
	var value = ieee754.decodeF32(bytes);

	if (Math.sign(value) * value === Infinity) {
	return {
	value: Math.sign(value),
	inf: true,
	nextIndex: ieee754.NUMBER_OF_BYTE_F32
	};
	}

	if (isNaN(value)) {
	var sign = bytes[bytes.length - 1] >> 7 ? -1 : 1;
	var mantissa = 0;

	for (var i = 0; i < bytes.length - 2; ++i) {
	mantissa += bytes[i] * Math.pow(256, i);
	}

	mantissa += bytes[bytes.length - 2] % 128 * Math.pow(256, bytes.length - 2);
	return {
	value: sign * mantissa,
	nan: true,
	nextIndex: ieee754.NUMBER_OF_BYTE_F32
	};
	}

	return {
	value: value,
	nextIndex: ieee754.NUMBER_OF_BYTE_F32
	};
	}

	function readUTF8String() {
	var lenu32 = readU32(); // Don't eat any bytes. Instead, peek ahead of the current offset using
	// readBytesAtOffset below. This keeps readUTF8String neutral with respect
	// to the current offset, just like the other readX functions.

	var strlen = lenu32.value;
	dump([strlen], "string length");
	var bytes = readBytesAtOffset(offset + lenu32.nextIndex, strlen);
	var value = utf8.decode(bytes);
	return {
	value: value,
	nextIndex: strlen + lenu32.nextIndex
	};
	}
	/**
	* Decode an unsigned 32bits integer
	*
	* The length will be handled by the leb librairy, we pass the max number of
	* byte.
	*/


	function readU32() {
	var bytes = readBytes(MAX_NUMBER_OF_BYTE_U32);
	var buffer = Buffer.from(bytes);
	return decodeUInt32(buffer);
	}

	function readVaruint32() {
	// where 32 bits = max 4 bytes
	var bytes = readBytes(4);
	var buffer = Buffer.from(bytes);
	return decodeUInt32(buffer);
	}

	function readVaruint7() {
	// where 7 bits = max 1 bytes
	var bytes = readBytes(1);
	var buffer = Buffer.from(bytes);
	return decodeUInt32(buffer);
	}
	/**
	* Decode a signed 32bits interger
	*/


	function read32() {
	var bytes = readBytes(MAX_NUMBER_OF_BYTE_U32);
	var buffer = Buffer.from(bytes);
	return decodeInt32(buffer);
	}
	/**
	* Decode a signed 64bits integer
	*/


	function read64() {
	var bytes = readBytes(MAX_NUMBER_OF_BYTE_U64);
	var buffer = Buffer.from(bytes);
	return decodeInt64(buffer);
	}

	function readU64() {
	var bytes = readBytes(MAX_NUMBER_OF_BYTE_U64);
	var buffer = Buffer.from(bytes);
	return decodeUInt64(buffer);
	}

	function readByte() {
	return readBytes(1)[0];
	}

	function parseModuleHeader() {
	if (isEOF() === true \|\| offset + 4 > buf.length) {
	throw new Error("unexpected end");
	}

	var header = readBytes(4);

	if (byteArrayEq(constants.magicModuleHeader, header) === false) {
	throw new CompileError("magic header not detected");
	}

	dump(header, "wasm magic header");
	eatBytes(4);
	}

	function parseVersion() {
	if (isEOF() === true \|\| offset + 4 > buf.length) {
	throw new Error("unexpected end");
	}

	var version = readBytes(4);

	if (byteArrayEq(constants.moduleVersion, version) === false) {
	throw new CompileError("unknown binary version");
	}

	dump(version, "wasm version");
	eatBytes(4);
	}

	function parseVec(cast) {
	var u32 = readU32();
	var length = u32.value;
	eatBytes(u32.nextIndex);
	dump([length], "number");

	if (length === 0) {
	return [];
	}

	var elements = [];

	for (var i = 0; i < length; i++) {
	var byte = readByte();
	eatBytes(1);
	var value = cast(byte);
	dump([byte], value);

	if (typeof value === "undefined") {
	throw new CompileError("Internal failure: parseVec could not cast the value");
	}

	elements.push(value);
	}

	return elements;
	} // Type section
	// https://webassembly.github.io/spec/binary/modules.html#binary-typesec


	function parseTypeSection(numberOfTypes) {
	var typeInstructionNodes = [];
	dump([numberOfTypes], "num types");

	for (var i = 0; i < numberOfTypes; i++) {
	var _startLoc = getPosition();

	dumpSep("type " + i);
	var type = readByte();
	eatBytes(1);

	if (type == constants.types.func) {
	dump([type], "func");
	var paramValtypes = parseVec(function (b) {
	return constants.valtypes[b];
	});
	var params = paramValtypes.map(function (v) {
	return t.funcParam(
	/valtype/
	v);
	});
	var result = parseVec(function (b) {
	return constants.valtypes[b];
	});
	typeInstructionNodes.push(function () {
	var endLoc = getPosition();
	return t.withLoc(t.typeInstruction(undefined, t.signature(params, result)), endLoc, _startLoc);
	}());
	state.typesInModule.push({
	params: params,
	result: result
	});
	} else {
	throw new Error("Unsupported type: " + toHex(type));
	}
	}

	return typeInstructionNodes;
	} // Import section
	// https://webassembly.github.io/spec/binary/modules.html#binary-importsec


	function parseImportSection(numberOfImports) {
	var imports = [];

	for (var i = 0; i < numberOfImports; i++) {
	dumpSep("import header " + i);

	var _startLoc2 = getPosition();
	/**
	* Module name
	*/


	var moduleName = readUTF8String();
	eatBytes(moduleName.nextIndex);
	dump([], "module name (".concat(moduleName.value, ")"));
	/**
	* Name
	*/

	var name = readUTF8String();
	eatBytes(name.nextIndex);
	dump([], "name (".concat(name.value, ")"));
	/**
	* Import descr
	*/

	var descrTypeByte = readByte();
	eatBytes(1);
	var descrType = constants.importTypes[descrTypeByte];
	dump([descrTypeByte], "import kind");

	if (typeof descrType === "undefined") {
	throw new CompileError("Unknown import description type: " + toHex(descrTypeByte));
	}

	var importDescr = void 0;

	if (descrType === "func") {
	var indexU32 = readU32();
	var typeindex = indexU32.value;
	eatBytes(indexU32.nextIndex);
	dump([typeindex], "type index");
	var signature = state.typesInModule[typeindex];

	if (typeof signature === "undefined") {
	throw new CompileError("function signature not found (".concat(typeindex, ")"));
	}

	var id = getUniqueName("func");
	importDescr = t.funcImportDescr(id, t.signature(signature.params, signature.result));
	state.functionsInModule.push({
	id: t.identifier(name.value),
	signature: signature,
	isExternal: true
	});
	} else if (descrType === "global") {
	importDescr = parseGlobalType();
	var globalNode = t.global(importDescr, []);
	state.globalsInModule.push(globalNode);
	} else if (descrType === "table") {
	importDescr = parseTableType(i);
	} else if (descrType === "mem") {
	var memoryNode = parseMemoryType(0);
	state.memoriesInModule.push(memoryNode);
	importDescr = memoryNode;
	} else {
	throw new CompileError("Unsupported import of type: " + descrType);
	}

	imports.push(function () {
	var endLoc = getPosition();
	return t.withLoc(t.moduleImport(moduleName.value, name.value, importDescr), endLoc, _startLoc2);
	}());
	}

	return imports;
	} // Function section
	// https://webassembly.github.io/spec/binary/modules.html#function-section


	function parseFuncSection(numberOfFunctions) {
	dump([numberOfFunctions], "num funcs");

	for (var i = 0; i < numberOfFunctions; i++) {
	var indexU32 = readU32();
	var typeindex = indexU32.value;
	eatBytes(indexU32.nextIndex);
	dump([typeindex], "type index");
	var signature = state.typesInModule[typeindex];

	if (typeof signature === "undefined") {
	throw new CompileError("function signature not found (".concat(typeindex, ")"));
	} // preserve anonymous, a name might be resolved later


	var id = t.withRaw(t.identifier(getUniqueName("func")), "");
	state.functionsInModule.push({
	id: id,
	signature: signature,
	isExternal: false
	});
	}
	} // Export section
	// https://webassembly.github.io/spec/binary/modules.html#export-section


	function parseExportSection(numberOfExport) {
	dump([numberOfExport], "num exports"); // Parse vector of exports

	for (var i = 0; i < numberOfExport; i++) {
	var _startLoc3 = getPosition();
	/**
	* Name
	*/


	var name = readUTF8String();
	eatBytes(name.nextIndex);
	dump([], "export name (".concat(name.value, ")"));
	/**
	* exportdescr
	*/

	var typeIndex = readByte();
	eatBytes(1);
	dump([typeIndex], "export kind");
	var indexu32 = readU32();
	var index = indexu32.value;
	eatBytes(indexu32.nextIndex);
	dump([index], "export index");
	var id = void 0,
	signature = void 0;

	if (constants.exportTypes[typeIndex] === "Func") {
	var func = state.functionsInModule[index];

	if (typeof func === "undefined") {
	throw new CompileError("unknown function (".concat(index, ")"));
	}

	id = t.numberLiteralFromRaw(index, String(index));
	signature = func.signature;
	} else if (constants.exportTypes[typeIndex] === "Table") {
	var table = state.tablesInModule[index];

	if (typeof table === "undefined") {
	throw new CompileError("unknown table ".concat(index));
	}

	id = t.numberLiteralFromRaw(index, String(index));
	signature = null;
	} else if (constants.exportTypes[typeIndex] === "Mem") {
	var memNode = state.memoriesInModule[index];

	if (typeof memNode === "undefined") {
	throw new CompileError("unknown memory ".concat(index));
	}

	id = t.numberLiteralFromRaw(index, String(index));
	signature = null;
	} else if (constants.exportTypes[typeIndex] === "Global") {
	var global = state.globalsInModule[index];

	if (typeof global === "undefined") {
	throw new CompileError("unknown global ".concat(index));
	}

	id = t.numberLiteralFromRaw(index, String(index));
	signature = null;
	} else {
	console.warn("Unsupported export type: " + toHex(typeIndex));
	return;
	}

	var endLoc = getPosition();
	state.elementsInExportSection.push({
	name: name.value,
	type: constants.exportTypes[typeIndex],
	signature: signature,
	id: id,
	index: index,
	endLoc: endLoc,
	startLoc: _startLoc3
	});
	}
	} // Code section
	// https://webassembly.github.io/spec/binary/modules.html#code-section


	function parseCodeSection(numberOfFuncs) {
	dump([numberOfFuncs], "number functions"); // Parse vector of function

	for (var i = 0; i < numberOfFuncs; i++) {
	var _startLoc4 = getPosition();

	dumpSep("function body " + i); // the u32 size of the function code in bytes
	// Ignore it for now

	var bodySizeU32 = readU32();
	eatBytes(bodySizeU32.nextIndex);
	dump([bodySizeU32.value], "function body size");
	var code = [];
	/**
	* Parse locals
	*/

	var funcLocalNumU32 = readU32();
	var funcLocalNum = funcLocalNumU32.value;
	eatBytes(funcLocalNumU32.nextIndex);
	dump([funcLocalNum], "num locals");
	var locals = [];

	for (var _i = 0; _i < funcLocalNum; _i++) {
	var _startLoc5 = getPosition();

	var localCountU32 = readU32();
	var localCount = localCountU32.value;
	eatBytes(localCountU32.nextIndex);
	dump([localCount], "num local");
	var valtypeByte = readByte();
	eatBytes(1);
	var type = constants.valtypes[valtypeByte];
	var args = [];

	for (var _i2 = 0; _i2 < localCount; _i2++) {
	args.push(t.valtypeLiteral(type));
	}

	var localNode = function () {
	var endLoc = getPosition();
	return t.withLoc(t.instruction("local", args), endLoc, _startLoc5);
	}();

	locals.push(localNode);
	dump([valtypeByte], type);

	if (typeof type === "undefined") {
	throw new CompileError("Unexpected valtype: " + toHex(valtypeByte));
	}
	}

	code.push.apply(code, locals); // Decode instructions until the end

	parseInstructionBlock(code);
	var endLoc = getPosition();
	state.elementsInCodeSection.push({
	code: code,
	locals: locals,
	endLoc: endLoc,
	startLoc: _startLoc4,
	bodySize: bodySizeU32.value
	});
	}
	}

	function parseInstructionBlock(code) {
	while (true) {
	var _startLoc6 = getPosition();

	var instructionAlreadyCreated = false;
	var instructionByte = readByte();
	eatBytes(1);

	if (instructionByte === 0xfe) {
	throw new CompileError("Atomic instructions are not implemented");
	}

	var instruction = constants.symbolsByByte[instructionByte];

	if (typeof instruction === "undefined") {
	throw new CompileError("Unexpected instruction: " + toHex(instructionByte));
	}

	if (typeof instruction.object === "string") {
	dump([instructionByte], "".concat(instruction.object, ".").concat(instruction.name));
	} else {
	dump([instructionByte], instruction.name);
	}
	/**
	* End of the function
	*/


	if (instruction.name === "end") {
	var node = function () {
	var endLoc = getPosition();
	return t.withLoc(t.instruction(instruction.name), endLoc, _startLoc6);
	}();

	code.push(node);
	break;
	}

	var args = [];

	if (instruction.name === "loop") {
	var _startLoc7 = getPosition();

	var blocktypeByte = readByte();
	eatBytes(1);
	var blocktype = constants.blockTypes[blocktypeByte];
	dump([blocktypeByte], "blocktype");

	if (typeof blocktype === "undefined") {
	throw new CompileError("Unexpected blocktype: " + toHex(blocktypeByte));
	}

	var instr = [];
	parseInstructionBlock(instr); // preserve anonymous

	var label = t.withRaw(t.identifier(getUniqueName("loop")), "");

	var loopNode = function () {
	var endLoc = getPosition();
	return t.withLoc(t.loopInstruction(label, blocktype, instr), endLoc, _startLoc7);
	}();

	code.push(loopNode);
	instructionAlreadyCreated = true;
	} else if (instruction.name === "if") {
	var _startLoc8 = getPosition();

	var _blocktypeByte = readByte();

	eatBytes(1);
	var _blocktype = constants.blockTypes[_blocktypeByte];
	dump([_blocktypeByte], "blocktype");

	if (typeof _blocktype === "undefined") {
	throw new CompileError("Unexpected blocktype: " + toHex(_blocktypeByte));
	}

	var testIndex = t.withRaw(t.identifier(getUniqueName("if")), "");
	var ifBody = [];
	parseInstructionBlock(ifBody); // Defaults to no alternate

	var elseIndex = 0;

	for (elseIndex = 0; elseIndex < ifBody.length; ++elseIndex) {
	var _instr = ifBody[elseIndex];

	if (_instr.type === "Instr" && _instr.id === "else") {
	break;
	}
	}

	var consequentInstr = ifBody.slice(0, elseIndex);
	var alternate = ifBody.slice(elseIndex + 1); // wast sugar

	var testInstrs = [];

	var ifNode = function () {
	var endLoc = getPosition();
	return t.withLoc(t.ifInstruction(testIndex, testInstrs, _blocktype, consequentInstr, alternate), endLoc, _startLoc8);
	}();

	code.push(ifNode);
	instructionAlreadyCreated = true;
	} else if (instruction.name === "block") {
	var _startLoc9 = getPosition();

	var _blocktypeByte2 = readByte();

	eatBytes(1);
	var _blocktype2 = constants.blockTypes[_blocktypeByte2];
	dump([_blocktypeByte2], "blocktype");

	if (typeof _blocktype2 === "undefined") {
	throw new CompileError("Unexpected blocktype: " + toHex(_blocktypeByte2));
	}

	var _instr2 = [];
	parseInstructionBlock(_instr2); // preserve anonymous

	var _label = t.withRaw(t.identifier(getUniqueName("block")), "");

	var blockNode = function () {
	var endLoc = getPosition();
	return t.withLoc(t.blockInstruction(_label, _instr2, _blocktype2), endLoc, _startLoc9);
	}();

	code.push(blockNode);
	instructionAlreadyCreated = true;
	} else if (instruction.name === "call") {
	var indexu32 = readU32();
	var index = indexu32.value;
	eatBytes(indexu32.nextIndex);
	dump([index], "index");

	var callNode = function () {
	var endLoc = getPosition();
	return t.withLoc(t.callInstruction(t.indexLiteral(index)), endLoc, _startLoc6);
	}();

	code.push(callNode);
	instructionAlreadyCreated = true;
	} else if (instruction.name === "call_indirect") {
	var _startLoc10 = getPosition();

	var indexU32 = readU32();
	var typeindex = indexU32.value;
	eatBytes(indexU32.nextIndex);
	dump([typeindex], "type index");
	var signature = state.typesInModule[typeindex];

	if (typeof signature === "undefined") {
	throw new CompileError("call_indirect signature not found (".concat(typeindex, ")"));
	}

	var _callNode = t.callIndirectInstruction(t.signature(signature.params, signature.result), []);

	var flagU32 = readU32();
	var flag = flagU32.value; // 0x00 - reserved byte

	eatBytes(flagU32.nextIndex);

	if (flag !== 0) {
	throw new CompileError("zero flag expected");
	}

	code.push(function () {
	var endLoc = getPosition();
	return t.withLoc(_callNode, endLoc, _startLoc10);
	}());
	instructionAlreadyCreated = true;
	} else if (instruction.name === "br_table") {
	var indicesu32 = readU32();
	var indices = indicesu32.value;
	eatBytes(indicesu32.nextIndex);
	dump([indices], "num indices");

	for (var i = 0; i <= indices; i++) {
	var _indexu = readU32();

	var _index = _indexu.value;
	eatBytes(_indexu.nextIndex);
	dump([_index], "index");
	args.push(t.numberLiteralFromRaw(_indexu.value.toString(), "u32"));
	}
	} else if (instructionByte >= 0x28 && instructionByte <= 0x40) {
	/**
	* Memory instructions
	*/
	if (instruction.name === "grow_memory" \|\| instruction.name === "current_memory") {
	var _indexU = readU32();

	var _index2 = _indexU.value;
	eatBytes(_indexU.nextIndex);

	if (_index2 !== 0) {
	throw new Error("zero flag expected");
	}

	dump([_index2], "index");
	} else {
	var aligun32 = readU32();
	var align = aligun32.value;
	eatBytes(aligun32.nextIndex);
	dump([align], "align");
	var offsetu32 = readU32();
	var _offset2 = offsetu32.value;
	eatBytes(offsetu32.nextIndex);
	dump([_offset2], "offset");
	}
	} else if (instructionByte >= 0x41 && instructionByte <= 0x44) {
	/**
	* Numeric instructions
	*/
	if (instruction.object === "i32") {
	var value32 = read32();
	var value = value32.value;
	eatBytes(value32.nextIndex);
	dump([value], "i32 value");
	args.push(t.numberLiteralFromRaw(value));
	}

	if (instruction.object === "u32") {
	var valueu32 = readU32();
	var _value = valueu32.value;
	eatBytes(valueu32.nextIndex);
	dump([_value], "u32 value");
	args.push(t.numberLiteralFromRaw(_value));
	}

	if (instruction.object === "i64") {
	var value64 = read64();
	var _value2 = value64.value;
	eatBytes(value64.nextIndex);
	dump([Number(_value2.toString())], "i64 value");
	var high = _value2.high,
	low = _value2.low;
	var _node = {
	type: "LongNumberLiteral",
	value: {
	high: high,
	low: low
	}
	};
	args.push(_node);
	}

	if (instruction.object === "u64") {
	var valueu64 = readU64();
	var _value3 = valueu64.value;
	eatBytes(valueu64.nextIndex);
	dump([Number(_value3.toString())], "u64 value");
	var _high = _value3.high,
	_low = _value3.low;
	var _node2 = {
	type: "LongNumberLiteral",
	value: {
	high: _high,
	low: _low
	}
	};
	args.push(_node2);
	}

	if (instruction.object === "f32") {
	var valuef32 = readF32();
	var _value4 = valuef32.value;
	eatBytes(valuef32.nextIndex);
	dump([_value4], "f32 value");
	args.push( // $FlowIgnore
	t.floatLiteral(_value4, valuef32.nan, valuef32.inf, String(_value4)));
	}

	if (instruction.object === "f64") {
	var valuef64 = readF64();
	var _value5 = valuef64.value;
	eatBytes(valuef64.nextIndex);
	dump([_value5], "f64 value");
	args.push( // $FlowIgnore
	t.floatLiteral(_value5, valuef64.nan, valuef64.inf, String(_value5)));
	}
	} else {
	for (var _i3 = 0; _i3 < instruction.numberOfArgs; _i3++) {
	var u32 = readU32();
	eatBytes(u32.nextIndex);
	dump([u32.value], "argument " + _i3);
	args.push(t.numberLiteralFromRaw(u32.value));
	}
	}

	if (instructionAlreadyCreated === false) {
	if (typeof instruction.object === "string") {
	var _node3 = function () {
	var endLoc = getPosition();
	return t.withLoc(t.objectInstruction(instruction.name, instruction.object, args), endLoc, _startLoc6);
	}();

	code.push(_node3);
	} else {
	var _node4 = function () {
	var endLoc = getPosition();
	return t.withLoc(t.instruction(instruction.name, args), endLoc, _startLoc6);
	}();

	code.push(_node4);
	}
	}
	}
	} // https://webassembly.github.io/spec/core/binary/types.html#limits


	function parseLimits() {
	var limitType = readByte();
	eatBytes(1);
	dump([limitType], "limit type");
	var min, max;

	if (limitType === 0x01 \|\| limitType === 0x03 // shared limits
	) {
	var u32min = readU32();
	min = parseInt(u32min.value);
	eatBytes(u32min.nextIndex);
	dump([min], "min");
	var u32max = readU32();
	max = parseInt(u32max.value);
	eatBytes(u32max.nextIndex);
	dump([max], "max");
	}

	if (limitType === 0x00) {
	var _u32min = readU32();

	min = parseInt(_u32min.value);
	eatBytes(_u32min.nextIndex);
	dump([min], "min");
	}

	return t.limit(min, max);
	} // https://webassembly.github.io/spec/core/binary/types.html#binary-tabletype


	function parseTableType(index) {
	var name = t.withRaw(t.identifier(getUniqueName("table")), String(index));
	var elementTypeByte = readByte();
	eatBytes(1);
	dump([elementTypeByte], "element type");
	var elementType = constants.tableTypes[elementTypeByte];

	if (typeof elementType === "undefined") {
	throw new CompileError("Unknown element type in table: " + toHex(elementType));
	}

	var limits = parseLimits();
	return t.table(elementType, limits, name);
	} // https://webassembly.github.io/spec/binary/types.html#global-types


	function parseGlobalType() {
	var valtypeByte = readByte();
	eatBytes(1);
	var type = constants.valtypes[valtypeByte];
	dump([valtypeByte], type);

	if (typeof type === "undefined") {
	throw new CompileError("Unknown valtype: " + toHex(valtypeByte));
	}

	var globalTypeByte = readByte();
	eatBytes(1);
	var globalType = constants.globalTypes[globalTypeByte];
	dump([globalTypeByte], "global type (".concat(globalType, ")"));

	if (typeof globalType === "undefined") {
	throw new CompileError("Invalid mutability: " + toHex(globalTypeByte));
	}

	return t.globalType(type, globalType);
	} // function parseNameModule() {
	// const lenu32 = readVaruint32();
	// eatBytes(lenu32.nextIndex);
	// console.log("len", lenu32);
	// const strlen = lenu32.value;
	// dump([strlen], "string length");
	// const bytes = readBytes(strlen);
	// eatBytes(strlen);
	// const value = utf8.decode(bytes);
	// return [t.moduleNameMetadata(value)];
	// }
	// this section contains an array of function names and indices


	function parseNameSectionFunctions() {
	var functionNames = [];
	var numberOfFunctionsu32 = readU32();
	var numbeOfFunctions = numberOfFunctionsu32.value;
	eatBytes(numberOfFunctionsu32.nextIndex);

	for (var i = 0; i < numbeOfFunctions; i++) {
	var indexu32 = readU32();
	var index = indexu32.value;
	eatBytes(indexu32.nextIndex);
	var name = readUTF8String();
	eatBytes(name.nextIndex);
	functionNames.push(t.functionNameMetadata(name.value, index));
	}

	return functionNames;
	}

	function parseNameSectionLocals() {
	var localNames = [];
	var numbeOfFunctionsu32 = readU32();
	var numbeOfFunctions = numbeOfFunctionsu32.value;
	eatBytes(numbeOfFunctionsu32.nextIndex);

	for (var i = 0; i < numbeOfFunctions; i++) {
	var functionIndexu32 = readU32();
	var functionIndex = functionIndexu32.value;
	eatBytes(functionIndexu32.nextIndex);
	var numLocalsu32 = readU32();
	var numLocals = numLocalsu32.value;
	eatBytes(numLocalsu32.nextIndex);

	for (var _i4 = 0; _i4 < numLocals; _i4++) {
	var localIndexu32 = readU32();
	var localIndex = localIndexu32.value;
	eatBytes(localIndexu32.nextIndex);
	var name = readUTF8String();
	eatBytes(name.nextIndex);
	localNames.push(t.localNameMetadata(name.value, localIndex, functionIndex));
	}
	}

	return localNames;
	} // this is a custom section used for name resolution
	// https://github.com/WebAssembly/design/blob/master/BinaryEncoding.md#name-section


	function parseNameSection(remainingBytes) {
	var nameMetadata = [];
	var initialOffset = offset;

	while (offset - initialOffset < remainingBytes) {
	// name_type
	var sectionTypeByte = readVaruint7();
	eatBytes(sectionTypeByte.nextIndex); // name_payload_len

	var subSectionSizeInBytesu32 = readVaruint32();
	eatBytes(subSectionSizeInBytesu32.nextIndex);

	switch (sectionTypeByte.value) {
	// case 0: {
	// TODO(sven): re-enable that
	// Current status: it seems that when we decode the module's name
	// no name_payload_len is used.
	//
	// See https://github.com/WebAssembly/design/blob/master/BinaryEncoding.md#name-section
	//
	// nameMetadata.push(...parseNameModule());
	// break;
	// }
	case 1:
	{
	nameMetadata.push.apply(nameMetadata, _toConsumableArray(parseNameSectionFunctions()));
	break;
	}

	case 2:
	{
	nameMetadata.push.apply(nameMetadata, _toConsumableArray(parseNameSectionLocals()));
	break;
	}

	default:
	{
	// skip unknown subsection
	eatBytes(subSectionSizeInBytesu32.value);
	}
	}
	}

	return nameMetadata;
	} // this is a custom section used for information about the producers
	// https://github.com/WebAssembly/tool-conventions/blob/master/ProducersSection.md


	function parseProducersSection() {
	var metadata = t.producersSectionMetadata([]); // field_count

	var sectionTypeByte = readVaruint32();
	eatBytes(sectionTypeByte.nextIndex);
	dump([sectionTypeByte.value], "num of producers");
	var fields = {
	language: [],
	"processed-by": [],
	sdk: []
	}; // fields

	for (var fieldI = 0; fieldI < sectionTypeByte.value; fieldI++) {
	// field_name
	var fieldName = readUTF8String();
	eatBytes(fieldName.nextIndex); // field_value_count

	var valueCount = readVaruint32();
	eatBytes(valueCount.nextIndex); // field_values

	for (var producerI = 0; producerI < valueCount.value; producerI++) {
	var producerName = readUTF8String();
	eatBytes(producerName.nextIndex);
	var producerVersion = readUTF8String();
	eatBytes(producerVersion.nextIndex);
	fields[fieldName.value].push(t.producerMetadataVersionedName(producerName.value, producerVersion.value));
	}

	metadata.producers.push(fields[fieldName.value]);
	}

	return metadata;
	}

	function parseGlobalSection(numberOfGlobals) {
	var globals = [];
	dump([numberOfGlobals], "num globals");

	for (var i = 0; i < numberOfGlobals; i++) {
	var _startLoc11 = getPosition();

	var globalType = parseGlobalType();
	/**
	* Global expressions
	*/

	var init = [];
	parseInstructionBlock(init);

	var node = function () {
	var endLoc = getPosition();
	return t.withLoc(t.global(globalType, init), endLoc, _startLoc11);
	}();

	globals.push(node);
	state.globalsInModule.push(node);
	}

	return globals;
	}

	function parseElemSection(numberOfElements) {
	var elems = [];
	dump([numberOfElements], "num elements");

	for (var i = 0; i < numberOfElements; i++) {
	var _startLoc12 = getPosition();

	var tableindexu32 = readU32();
	var tableindex = tableindexu32.value;
	eatBytes(tableindexu32.nextIndex);
	dump([tableindex], "table index");
	/**
	* Parse instructions
	*/

	var instr = [];
	parseInstructionBlock(instr);
	/**
	* Parse ( vector function index ) *
	*/

	var indicesu32 = readU32();
	var indices = indicesu32.value;
	eatBytes(indicesu32.nextIndex);
	dump([indices], "num indices");
	var indexValues = [];

	for (var _i5 = 0; _i5 < indices; _i5++) {
	var indexu32 = readU32();
	var index = indexu32.value;
	eatBytes(indexu32.nextIndex);
	dump([index], "index");
	indexValues.push(t.indexLiteral(index));
	}

	var elemNode = function () {
	var endLoc = getPosition();
	return t.withLoc(t.elem(t.indexLiteral(tableindex), instr, indexValues), endLoc, _startLoc12);
	}();

	elems.push(elemNode);
	}

	return elems;
	} // https://webassembly.github.io/spec/core/binary/types.html#memory-types


	function parseMemoryType(i) {
	var limits = parseLimits();
	return t.memory(limits, t.indexLiteral(i));
	} // https://webassembly.github.io/spec/binary/modules.html#table-section


	function parseTableSection(numberOfElements) {
	var tables = [];
	dump([numberOfElements], "num elements");

	for (var i = 0; i < numberOfElements; i++) {
	var tablesNode = parseTableType(i);
	state.tablesInModule.push(tablesNode);
	tables.push(tablesNode);
	}

	return tables;
	} // https://webassembly.github.io/spec/binary/modules.html#memory-section


	function parseMemorySection(numberOfElements) {
	var memories = [];
	dump([numberOfElements], "num elements");

	for (var i = 0; i < numberOfElements; i++) {
	var memoryNode = parseMemoryType(i);
	state.memoriesInModule.push(memoryNode);
	memories.push(memoryNode);
	}

	return memories;
	} // https://webassembly.github.io/spec/binary/modules.html#binary-startsec


	function parseStartSection() {
	var startLoc = getPosition();
	var u32 = readU32();
	var startFuncIndex = u32.value;
	eatBytes(u32.nextIndex);
	dump([startFuncIndex], "index");
	return function () {
	var endLoc = getPosition();
	return t.withLoc(t.start(t.indexLiteral(startFuncIndex)), endLoc, startLoc);
	}();
	} // https://webassembly.github.io/spec/binary/modules.html#data-section


	function parseDataSection(numberOfElements) {
	var dataEntries = [];
	dump([numberOfElements], "num elements");

	for (var i = 0; i < numberOfElements; i++) {
	var memoryIndexu32 = readU32();
	var memoryIndex = memoryIndexu32.value;
	eatBytes(memoryIndexu32.nextIndex);
	dump([memoryIndex], "memory index");
	var instrs = [];
	parseInstructionBlock(instrs);
	var hasExtraInstrs = instrs.filter(function (i) {
	return i.id !== "end";
	}).length !== 1;

	if (hasExtraInstrs) {
	throw new CompileError("data section offset must be a single instruction");
	}

	var bytes = parseVec(function (b) {
	return b;
	});
	dump([], "init");
	dataEntries.push(t.data(t.memIndexLiteral(memoryIndex), instrs[0], t.byteArray(bytes)));
	}

	return dataEntries;
	} // https://webassembly.github.io/spec/binary/modules.html#binary-section


	function parseSection(sectionIndex) {
	var sectionId = readByte();
	eatBytes(1);

	if (sectionId >= sectionIndex \|\| sectionIndex === constants.sections.custom) {
	sectionIndex = sectionId + 1;
	} else {
	if (sectionId !== constants.sections.custom) throw new CompileError("Unexpected section: " + toHex(sectionId));
	}

	var nextSectionIndex = sectionIndex;
	var startOffset = offset;
	var startLoc = getPosition();
	var u32 = readU32();
	var sectionSizeInBytes = u32.value;
	eatBytes(u32.nextIndex);

	var sectionSizeInBytesNode = function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(sectionSizeInBytes), endLoc, startLoc);
	}();

	switch (sectionId) {
	case constants.sections.type:
	{
	dumpSep("section Type");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _startLoc13 = getPosition();

	var _u = readU32();

	var numberOfTypes = _u.value;
	eatBytes(_u.nextIndex);

	var _metadata = t.sectionMetadata("type", startOffset, sectionSizeInBytesNode, function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(numberOfTypes), endLoc, _startLoc13);
	}());

	var _nodes = parseTypeSection(numberOfTypes);

	return {
	nodes: _nodes,
	metadata: _metadata,
	nextSectionIndex: nextSectionIndex
	};
	}

	case constants.sections.table:
	{
	dumpSep("section Table");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _startLoc14 = getPosition();

	var _u2 = readU32();

	var numberOfTable = _u2.value;
	eatBytes(_u2.nextIndex);
	dump([numberOfTable], "num tables");

	var _metadata2 = t.sectionMetadata("table", startOffset, sectionSizeInBytesNode, function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(numberOfTable), endLoc, _startLoc14);
	}());

	var _nodes2 = parseTableSection(numberOfTable);

	return {
	nodes: _nodes2,
	metadata: _metadata2,
	nextSectionIndex: nextSectionIndex
	};
	}

	case constants.sections.import:
	{
	dumpSep("section Import");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _startLoc15 = getPosition();

	var numberOfImportsu32 = readU32();
	var numberOfImports = numberOfImportsu32.value;
	eatBytes(numberOfImportsu32.nextIndex);
	dump([numberOfImports], "number of imports");

	var _metadata3 = t.sectionMetadata("import", startOffset, sectionSizeInBytesNode, function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(numberOfImports), endLoc, _startLoc15);
	}());

	var _nodes3 = parseImportSection(numberOfImports);

	return {
	nodes: _nodes3,
	metadata: _metadata3,
	nextSectionIndex: nextSectionIndex
	};
	}

	case constants.sections.func:
	{
	dumpSep("section Function");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _startLoc16 = getPosition();

	var numberOfFunctionsu32 = readU32();
	var numberOfFunctions = numberOfFunctionsu32.value;
	eatBytes(numberOfFunctionsu32.nextIndex);

	var _metadata4 = t.sectionMetadata("func", startOffset, sectionSizeInBytesNode, function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(numberOfFunctions), endLoc, _startLoc16);
	}());

	parseFuncSection(numberOfFunctions);
	var _nodes4 = [];
	return {
	nodes: _nodes4,
	metadata: _metadata4,
	nextSectionIndex: nextSectionIndex
	};
	}

	case constants.sections.export:
	{
	dumpSep("section Export");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _startLoc17 = getPosition();

	var _u3 = readU32();

	var numberOfExport = _u3.value;
	eatBytes(_u3.nextIndex);

	var _metadata5 = t.sectionMetadata("export", startOffset, sectionSizeInBytesNode, function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(numberOfExport), endLoc, _startLoc17);
	}());

	parseExportSection(numberOfExport);
	var _nodes5 = [];
	return {
	nodes: _nodes5,
	metadata: _metadata5,
	nextSectionIndex: nextSectionIndex
	};
	}

	case constants.sections.code:
	{
	dumpSep("section Code");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _startLoc18 = getPosition();

	var _u4 = readU32();

	var numberOfFuncs = _u4.value;
	eatBytes(_u4.nextIndex);

	var _metadata6 = t.sectionMetadata("code", startOffset, sectionSizeInBytesNode, function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(numberOfFuncs), endLoc, _startLoc18);
	}());

	if (opts.ignoreCodeSection === true) {
	var remainingBytes = sectionSizeInBytes - _u4.nextIndex;
	eatBytes(remainingBytes); // eat the entire section
	} else {
	parseCodeSection(numberOfFuncs);
	}

	var _nodes6 = [];
	return {
	nodes: _nodes6,
	metadata: _metadata6,
	nextSectionIndex: nextSectionIndex
	};
	}

	case constants.sections.start:
	{
	dumpSep("section Start");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _metadata7 = t.sectionMetadata("start", startOffset, sectionSizeInBytesNode);

	var _nodes7 = [parseStartSection()];
	return {
	nodes: _nodes7,
	metadata: _metadata7,
	nextSectionIndex: nextSectionIndex
	};
	}

	case constants.sections.element:
	{
	dumpSep("section Element");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _startLoc19 = getPosition();

	var numberOfElementsu32 = readU32();
	var numberOfElements = numberOfElementsu32.value;
	eatBytes(numberOfElementsu32.nextIndex);

	var _metadata8 = t.sectionMetadata("element", startOffset, sectionSizeInBytesNode, function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(numberOfElements), endLoc, _startLoc19);
	}());

	var _nodes8 = parseElemSection(numberOfElements);

	return {
	nodes: _nodes8,
	metadata: _metadata8,
	nextSectionIndex: nextSectionIndex
	};
	}

	case constants.sections.global:
	{
	dumpSep("section Global");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _startLoc20 = getPosition();

	var numberOfGlobalsu32 = readU32();
	var numberOfGlobals = numberOfGlobalsu32.value;
	eatBytes(numberOfGlobalsu32.nextIndex);

	var _metadata9 = t.sectionMetadata("global", startOffset, sectionSizeInBytesNode, function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(numberOfGlobals), endLoc, _startLoc20);
	}());

	var _nodes9 = parseGlobalSection(numberOfGlobals);

	return {
	nodes: _nodes9,
	metadata: _metadata9,
	nextSectionIndex: nextSectionIndex
	};
	}

	case constants.sections.memory:
	{
	dumpSep("section Memory");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _startLoc21 = getPosition();

	var _numberOfElementsu = readU32();

	var _numberOfElements = _numberOfElementsu.value;
	eatBytes(_numberOfElementsu.nextIndex);

	var _metadata10 = t.sectionMetadata("memory", startOffset, sectionSizeInBytesNode, function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(_numberOfElements), endLoc, _startLoc21);
	}());

	var _nodes10 = parseMemorySection(_numberOfElements);

	return {
	nodes: _nodes10,
	metadata: _metadata10,
	nextSectionIndex: nextSectionIndex
	};
	}

	case constants.sections.data:
	{
	dumpSep("section Data");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");

	var _metadata11 = t.sectionMetadata("data", startOffset, sectionSizeInBytesNode);

	var _startLoc22 = getPosition();

	var _numberOfElementsu2 = readU32();

	var _numberOfElements2 = _numberOfElementsu2.value;
	eatBytes(_numberOfElementsu2.nextIndex);

	_metadata11.vectorOfSize = function () {
	var endLoc = getPosition();
	return t.withLoc(t.numberLiteralFromRaw(_numberOfElements2), endLoc, _startLoc22);
	}();

	if (opts.ignoreDataSection === true) {
	var _remainingBytes = sectionSizeInBytes - _numberOfElementsu2.nextIndex;

	eatBytes(_remainingBytes); // eat the entire section

	dumpSep("ignore data (" + sectionSizeInBytes + " bytes)");
	return {
	nodes: [],
	metadata: _metadata11,
	nextSectionIndex: nextSectionIndex
	};
	} else {
	var _nodes11 = parseDataSection(_numberOfElements2);

	return {
	nodes: _nodes11,
	metadata: _metadata11,
	nextSectionIndex: nextSectionIndex
	};
	}
	}

	case constants.sections.custom:
	{
	dumpSep("section Custom");
	dump([sectionId], "section code");
	dump([sectionSizeInBytes], "section size");
	var _metadata12 = [t.sectionMetadata("custom", startOffset, sectionSizeInBytesNode)];
	var sectionName = readUTF8String();
	eatBytes(sectionName.nextIndex);
	dump([], "section name (".concat(sectionName.value, ")"));

	var _remainingBytes2 = sectionSizeInBytes - sectionName.nextIndex;

	if (sectionName.value === "name") {
	var initialOffset = offset;

	try {
	_metadata12.push.apply(_metadata12, _toConsumableArray(parseNameSection(_remainingBytes2)));
	} catch (e) {
	console.warn("Failed to decode custom \"name\" section @".concat(offset, "; ignoring (").concat(e.message, ")."));
	eatBytes(offset - (initialOffset + _remainingBytes2));
	}
	} else if (sectionName.value === "producers") {
	var _initialOffset = offset;

	try {
	_metadata12.push(parseProducersSection());
	} catch (e) {
	console.warn("Failed to decode custom \"producers\" section @".concat(offset, "; ignoring (").concat(e.message, ")."));
	eatBytes(offset - (_initialOffset + _remainingBytes2));
	}
	} else {
	// We don't parse the custom section
	eatBytes(_remainingBytes2);
	dumpSep("ignore custom " + JSON.stringify(sectionName.value) + " section (" + _remainingBytes2 + " bytes)");
	}

	return {
	nodes: [],
	metadata: _metadata12,
	nextSectionIndex: nextSectionIndex
	};
	}
	}

	throw new CompileError("Unexpected section: " + toHex(sectionId));
	}

	parseModuleHeader();
	parseVersion();
	var moduleFields = [];
	var sectionIndex = 0;
	var moduleMetadata = {
	sections: [],
	functionNames: [],
	localNames: [],
	producers: []
	};
	/**
	* All the generate declaration are going to be stored in our state
	*/

	while (offset < buf.length) {
	var _parseSection = parseSection(sectionIndex),
	_nodes12 = _parseSection.nodes,
	_metadata13 = _parseSection.metadata,
	nextSectionIndex = _parseSection.nextSectionIndex;

	moduleFields.push.apply(moduleFields, _toConsumableArray(_nodes12));
	var metadataArray = Array.isArray(_metadata13) ? _metadata13 : [_metadata13];
	metadataArray.forEach(function (metadataItem) {
	if (metadataItem.type === "FunctionNameMetadata") {
	moduleMetadata.functionNames.push(metadataItem);
	} else if (metadataItem.type === "LocalNameMetadata") {
	moduleMetadata.localNames.push(metadataItem);
	} else if (metadataItem.type === "ProducersSectionMetadata") {
	moduleMetadata.producers.push(metadataItem);
	} else {
	moduleMetadata.sections.push(metadataItem);
	}
	}); // Ignore custom section

	if (nextSectionIndex) {
	sectionIndex = nextSectionIndex;
	}
	}
	/**
	* Transform the state into AST nodes
	*/


	var funcIndex = 0;
	state.functionsInModule.forEach(function (func) {
	var params = func.signature.params;
	var result = func.signature.result;
	var body = []; // External functions doesn't provide any code, can skip it here

	if (func.isExternal === true) {
	return;
	}

	var decodedElementInCodeSection = state.elementsInCodeSection[funcIndex];

	if (opts.ignoreCodeSection === false) {
	if (typeof decodedElementInCodeSection === "undefined") {
	throw new CompileError("func " + toHex(funcIndex) + " code not found");
	}

	body = decodedElementInCodeSection.code;
	}

	funcIndex++;
	var funcNode = t.func(func.id, t.signature(params, result), body);

	if (func.isExternal === true) {
	funcNode.isExternal = func.isExternal;
	} // Add function position in the binary if possible


	if (opts.ignoreCodeSection === false) {
	var _startLoc23 = decodedElementInCodeSection.startLoc,
	endLoc = decodedElementInCodeSection.endLoc,
	bodySize = decodedElementInCodeSection.bodySize;
	funcNode = t.withLoc(funcNode, endLoc, _startLoc23);
	funcNode.metadata = {
	bodySize: bodySize
	};
	}

	moduleFields.push(funcNode);
	});
	state.elementsInExportSection.forEach(function (moduleExport) {
	/**
	* If the export has no id, we won't be able to call it from the outside
	* so we can omit it
	*/
	if (moduleExport.id != null) {
	moduleFields.push(t.withLoc(t.moduleExport(moduleExport.name, t.moduleExportDescr(moduleExport.type, moduleExport.id)), moduleExport.endLoc, moduleExport.startLoc));
	}
	});
	dumpSep("end of program");
	var module = t.module(null, moduleFields, t.moduleMetadata(moduleMetadata.sections, moduleMetadata.functionNames, moduleMetadata.localNames, moduleMetadata.producers));
	return t.program([module]);
	}

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